gjennom

Etymology
From (dative of /).

Adverb

 * 1)  through and through

Preposition

 * 1) through (from one side of an opening to the other)
 * 2) through, during (from start to finish)
 * 3) with help from, via
 * De kjøpte billettene gjennom reisebyrået.
 * They bought tickets via the travel agency
 * They bought tickets via the travel agency

Etymology
From, dative of.

Adverb

 * 1)  through and through

Preposition

 * 1) through (from one side of an opening to the other)
 * 2) through, during (from start to finish)
 * 3) with help from, via
 * Dei kjøpte billettane gjennom reisebyrået.
 * They bought the tickets via the travel agency.